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sergeinik [125]
3 years ago
9

Why do some red blood cells undergo programmed death? They are healthy. The body must balance the blood cell count. Their concen

tration is too low. There is too much oxygen in the blood.
Biology
2 answers:
vazorg [7]3 years ago
8 0
I think the answer is B.
inn [45]3 years ago
3 0
The body must balance the blood cell count.
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muminat

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3 years ago
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3 years ago
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Number 2.- </span><span>C.the energy required to start the reaction.

Hope it helps!</span>
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3 years ago
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